How To Fix ESET Error Code MSI 5003?

 ESET Error Code MSI 5003

Most of us might have encountered different error messages while downloading, installing, or accessing an antivirus software. One of the common errors encountered by most users while installing the ESET antivirus software is the ESET error code MSI 5003. The main reason for this error code is still not known.

Troubleshooting Steps

  • Initially, make sure that the downloaded antivirus file is compatible with your OS.
  • Next, check if you have signed into your computer as an administrator.
  • If not, sign in to the computer with admin rights and then try to install the ESET antivirus software on your computer.
  • Make sure that you have downloaded the installer file from the ESET antivirus software’s official site.
  • If you’re encountering this error code for the first time, close the installation wizard, wait for sometimes, and then re-perform the installation process.
  • If the error code MSI.5003 persists, then delete or remove the installation file from your computer and re-download the file.
  • After downloading the installer file, open it and follow the on-screen instructions to complete the installation.
  • If the same error persists, use the ESET Installation Fixer tool to resolve the error.

Using ESET Installation Fixer

  • First, download the ESET Installation Fixer tool from the official site of ESET.
  • Once the tool has been downloaded, open and run it as an administrator.
  • To do so, open the Command Prompt window with admin rights.
  • Enter the directory of the downloaded file in the cmd window and tap Enter.
  • Check if the error code MSI.5003 is resolved.
  • If not, the missing MSI registry might be causing this error.
  • To fix this issue, type C:\Users\Owner\DesktopESETInstallationFixer_64.exe -fix MMR.
  • Now, try to install the ESET antivirus software on your computer. If the ESET error code MSI 5003 persists, contact us.


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